Thread cutter



July 1 y F. D. HERRING THREAD CUTTER Filed Feb. 6, 1920 the machine,

erly perform the cutting FRANK D. HERBING, OF GUERO, TEXAS, ASSIGNOR OFONE-HALF TO JOHN iaaaaa O'E CUERO, TEXAS.

THREAD CUTTER.

Application filed February 6, 1920. Serial No. 356,709.

To all whom it may concern:

Be it known that I, FRANK D. HERRING, a citizen of the United States,residing at Cuero, in the county of De Witt and State of Texas, haveinvented new and useful Thread Cutters, of which the following is aspecification.

This invention relates to new and useful improvements in thread cuttingdevices, and more particularly to a thread cutting device for attachmentto automatic looms.

The primary object of the invention is to provide a thread cuttingdevice disposed in such relation to the cloth passing through that thecutter proper will operate along the selvage of the cloth to trim theextending ends of the threads forming the cloth.

A further object of the invention is to provide a device of thischaracter wherein the cutting blades thereof will be automaticallyadjusted with relation to each other to compensate for wear between thecutting blades to cause the cutting blades to propoperation.

7 A still further object of the invention is to provide a cuttingattachment which will be operated by the movement of the cloth throughthe machine, thus eliminating the necessity of providing auxiliaryoperating mechanism for controlling the cutting blades.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spiritof theinvention.

Referring to the drawing Figure 1 illustrates a plan View of the cuttingdevice constructed in accordance with the present invention.

Figure 2 illustrates a longitudinal sectional view taken on line 2-2 ofFigure 1.

Figure 3 illustrates a transverse sectional view taken on line 33 ofFigure 2.

Referring to the drawing in detail, the reference character 5 designatesthe frame of the cutting device, which is provided with an upwardlyextending portion 6, providvided with a beveled edge 18 ing a bracketwhereby the frame and cut ting device carried thereby may be supportedin proper relation on a loom.

' This frame 5 is curved transversely of its length as at 7, to providea" clearance for the operating roller 8 disposed to operate within theframe, and as shown, the opposed ends of the frame 5 extend upwardly toprovide seats for theibearing members 9 and 10, on which the operatingroller 8 is supported.

One end of the frame 5 is cut away as at 11 to accommodate the dependingportion 12 of the removable portion 18 of the bracket member to permitthe cutting device to be readily and easily removed from the loom towhich the same is attached in the event that it becomes necessary toresharpen or replace the cutting blades thereof.

Supported adjacent the depending portion 12, is a stationary cuttingblade 1 1, which cutting blade 14 is slotted as at 15 to embrace thebearing 10, the upper wall of the slotted portion 15 being beveled as at16 to provide a cutting surface, which cutting surface cooperates withthe rotary cutting blade 17 which cutting blade is pro notchedthroughout its periphery, the notches being arranged in spaced relationwith each other to grasp the threads forming the selvage to bring thesame into proper cutting rela tion with the cutting edges.

Extending from one of the end walls of the rotary roller 8, are the pins19, which pins are seated in in the end of the operating roller 8, andextend into openings of the blade 17, to connect the rotary cuttingblade 17 and operating roller 8, so that movement of the operatingroller 8, will result in a relative movement of the rotary cutting blade17.

Surrounding the bearing 10 and disposed between one end of the frame andthe stationary cutting blade 14 is a coiled spring 20 adapted to exert apressure on the stationary cutting blade 14 to urge the same towards therotary cutting blade 17 thus insuring the stationary cutting blade 14:being maintained in proper relation with the rotary cutting blade 17.

The operating roller 8 is provided with a plurality of pins extendingfrom the PB", riphery thereof, the pins being disposed in w. Rename, v

suitable openings formed spaced relation throughout the entire outersurface of the roller 8 and as shown, the

- pins extend in a direction towards the r0 tary cutting blade 17 sothat the pins will direct the cloth laterally in its passage through theloom, to bring the selvage thereof into a position between the rotarycut-ting blade 17 and the beveled edge 16 of the stationary cuttingblade 14:.

In the operation of the device, as before stated, the cutting device isproperly positioned on the frame of the 100111 so that the cuttingblades thereof will operate in a plane with the selvage of the clothpassing through the loom. It follows that the cloth passing over theoperating roller 8, due to its contact with the 8 to revolve with theresult cutting blade 17 supported the roller revolves to accomplish thecut ting result.

Having thus described the what I claim as new is In a device of theclass described, a frame,

that the rotary invention,

pins 21, causes the roller at one end ofa roller rotatably mountedWithin the frame and having openings disposed in. one end thereof, astationary member having a cut out portion extending from one edgethereof, one of the walls of the cut out portion being beveled toprovide a cutting edge, a rotary cutting member, havi ng pins adapted tobe positioned in the openings of the roller, to removably secure therotary cutting member to the roller, said rotary cutting member having aplurality of notches adapted to pick up the threads of the selvage ofcloth and carry the threads to the stationary cutting blades, and meansfor normally urging the stationary cutting blades into close engagementwith the rotary cutting blades.

In testimony that I claim the foregoing as my own, I have hereto afixedmy signature in the presence of two witnesses.

FRANK D. HERB ING. IVitnesses G. V. CRosBY, O. M. Perms.

